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11 terms

Support

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Integument
Provides protection and sometimes support
invertebrates
single-layered epidermis, sometimes with cuticle
Cephalopods
cuticle, epidermis, connective tissue (dermis), layer of iridocytes, and more connective tissue
Arthropods
epidermis (hypodermis) that secretes a complex cuticle, inner procuticle (protein and chitin) and outer epicuticle (protein and lipid for waterproofing)
Cuticle
flexible or calcified or sclerotized: often serving as an exoskeleton
ecdysis
Must be shed to allow growth
Vertebrates
have epidermis (stratified epithelium of ectodermal origin) and dermis (connective tissue of mesodermal origin)
cornified
Epidermis keratinized in terrestrial forms (scales, feathers, hair)
Dermis bone
armor —> flexible scales) (antlers
Color
structural (physical structure affects light) or pigment based (chromatophores)
crystals of g or p
Melanins, carotenoids in xanthophores), iridophores